A miss?

[quk@sievers.com (Phil Payne)]

In message <Pine.SUN.3.91.970105135948.13912A-100000@indy4> Mann Law writes:

> 	When accelerating [usually comes in between 2,500 & 3,800rpm] the 
> car feels like it is stuttering.  Akin to a miss, but when you back off 
> the gas it feels almost normal.  Hard to describe.  Feels almost like it 
> is running too rich in that area. Only shows up when the car is moving, 
> not in neutral.  I'm baffled.  Help?

I'm chasing the same symptoms in an ur-quattro (1988 MB engine, two knock 
sensors,  MAC12).  I've eliminated compression, plugs, plug wires, distributor 
cap and rotor, and the coil.
 
I suspect either the metering head or the wiring harness between the WOT switch 
and the ECU.  I've dialed in a bit more mixture, and that improved it slightly, 
so I'm leaning towards a dirty/clogged metering head.
 
What mileage do you have?  Mine is 134.5k.

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club